diagram INFINITI FX35 2006 Manual PDF

DI-114
CLOCK
Revision: 2006 December 2006 FX35/FX45
CLOCKPFP:25820
Wiring Diagram — CLOCK —NKS0031R
TKWM4360E

REAR VIEW MONITOR DI-119
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Revision: 2006 December 2006 FX35/FX45
Wiring Diagram — R/VIEW —NKS0031W
TKWM4362E

EC-1
ENGINE CONTROL SYSTEM
B ENGINE
CONTENTS
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SECTION EC
A
EC
Revision: 2006 December 2006 FX35/FX45
ENGINE CONTROL SYSTEM
VQ35DE
INDEX FOR DTC ................................................... ... 15
DTC No. Index .................................................... ... 15
Alphabetical Index ............................................... ... 19
PRECAUTIONS ..................................................... ... 23
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ... 23
On Board Diagnostic (OBD) System of Engine and
A/T ....................................................................... ... 23
Precaution ........................................................... ... 23
PREPARATION ...................................................... ... 27
Special Service Tools .......................................... ... 27
Commercial Service Tools ................................... ... 29
ENGINE CONTROL SYSTEM ............................... ... 30
System Diagram .................................................. ... 30
Multiport Fuel Injection (MFI) System ................. ... 31
Electronic Ignition (EI) System ............................ ... 33
Fuel Cut Control (at No Load and High Engine
Speed) ................................................................. ... 34
AIR CONDITIONING CUT CONTROL .................. ... 35
Input/Output Signal Chart .................................... ... 35
System Description ............................................. ... 35
AUTOMATIC SPEED CONTROL DEVICE (ASCD) ... 36
System Description ............................................. ... 36
Component Description ....................................... ... 37
CAN COMMUNICATION ....................................... ... 38
System Description ............................................. ... 38
EVAPORATIVE EMISSION SYSTEM .................... ... 39
Description .......................................................... ... 39
Component Inspection ........................................ ... 42
Removal and Installation ..................................... ... 43
How to Detect Fuel Vapor Leakage .................... ... 43
ON BOARD REFUELING VAPOR RECOVERY
(ORVR) ................................................................... ... 46
System Description ............................................. ... 46
Diagnostic Procedure .......................................... ... 47
Component Inspection ........................................ ... 49 POSITIVE CRANKCASE VENTILATION ..............
... 51
Description ........................................................... ... 51
Component Inspection ......................................... ... 51
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-
NATS) ..................................................................... ... 53
Description ........................................................... ... 53
ON BOARD DIAGNOSTIC (OBD) SYSTEM ......... ... 54
Introduction .......................................................... ... 54
Two Trip Detection Logic ..................................... ... 54
Emission-Related Diagnostic Information ............ ... 55
Malfunction Indicator Lamp (MIL) ........................ ... 68
OBD System Operation Chart ............................. ... 72
BASIC SERVICE PROCEDURE ............................ ... 77
Basic Inspection .................................................. ... 77
Idle Speed and Ignition Timing Check ................. ... 82
VIN Registration .................................................. ... 83
Accelerator Pedal Released Position Learning ... ... 84
Throttle Valve Closed Position Learning .............. ... 84
Idle Air Volume Learning ..................................... ... 84
Fuel Pressure Check ........................................... ... 86
TROUBLE DIAGNOSIS ......................................... ... 88
Trouble Diagnosis Introduction ............................ ... 88
DTC Inspection Priority Chart .............................. ... 94
Fail-Safe Chart .................................................... ... 96
Symptom Matrix Chart ......................................... ... 97
Engine Control Component Parts Location ......... .101
Vacuum Hose Drawing ........................................ .107
Circuit Diagram .................................................... .108
ECM Harness Connector Terminal Layout .......... .110
ECM Terminals and Reference Value .................. .110
CONSULT-II Function (ENGINE) ......................... .119
Generic Scan Tool (GST) Function ...................... .130
CONSULT-II Reference Value in Data Monitor .... .133
Major Sensor Reference Graph in Data Monitor
Mode .................................................................... .136
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .138
Description ........................................................... .138
Testing Condition ................................................. .138
Inspection Procedure ........................................... .138
Diagnostic Procedure .......................................... .139

EC-2Revision: 2006 December 2006 FX35/FX45
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT ...................................................................... .148
Description ........................................................... .148
Diagnostic Procedure .......................................... .148
POWER SUPPLY AND GROUND CIRCUIT .......... .149
Wiring Diagram .................................................... .149
Diagnostic Procedure .......................................... .150
Ground Inspection ............................................... .154
DTC U1000, U1001 CAN COMMUNICATION LINE .156
Description ........................................................... .156
On Board Diagnosis Logic ................................... .156
DTC Confirmation Procedure .............................. .156
Wiring Diagram .................................................... .157
Diagnostic Procedure .......................................... .158
DTC U1010 CAN COMMUNICATION .................... .159
Description ........................................................... .159
On Board Diagnosis Logic ................................... .159
DTC Confirmation Procedure .............................. .159
Diagnostic Procedure .......................................... .160
DTC P0011, P0021 IVT CONTROL ....................... .161
Description ........................................................... .161
CONSULT-II Reference Value in Data Monitor Mode .161
On Board Diagnosis Logic ................................... .162
DTC Confirmation Procedure .............................. .162
Diagnostic Procedure .......................................... .163
Component Inspection ......................................... .164
Removal and Installation ..................................... .164
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1
HEATER ................................................................. .165
Description ........................................................... .165
CONSULT-II Reference Value in Data Monitor Mode
.165
On Board Diagnosis Logic ................................... .165
DTC Confirmation Procedure .............................. .165
Wiring Diagram .................................................... .167
Diagnostic Procedure .......................................... .170
Component Inspection ......................................... .172
Removal and Installation ..................................... .172
DTC P0037, P0038, P0057, P0058 HO2S2 HEATER .173
Description ........................................................... .173
CONSULT-II Reference Value in Data Monitor Mode .173
On Board Diagnosis Logic ................................... .173
DTC Confirmation Procedure .............................. .174
Wiring Diagram .................................................... .175
Diagnostic Procedure .......................................... .178
Component Inspection ......................................... .180
Removal and Installation ..................................... .180
DTC P0075, P0081 IVT CONTROL SOLENOID
VALVE .................................................................... .181
Component Description ....................................... .181
CONSULT-II Reference Value in Data Monitor Mode .181
On Board Diagnosis Logic ................................... .181
DTC Confirmation Procedure .............................. .181
Wiring Diagram .................................................... .182
Diagnostic Procedure .......................................... .186 Component Inspection .........................................
.187
Removal and Installation ...................................... .187
DTC P0101 MAF SENSOR .................................... .188
Component Description ....................................... .188
CONSULT-II Reference Value in Data Monitor Mode .188
On Board Diagnosis Logic ................................... .188
DTC Confirmation Procedure ............................... .189
Overall Function Check ........................................ .190
Wiring Diagram .................................................... .191
Diagnostic Procedure ........................................... .192
Component Inspection ......................................... .195
Removal and Installation ...................................... .196
DTC P0102, P0103 MAF SENSOR ........................ .197
Component Description ....................................... .197
CONSULT-II Reference Value in Data Monitor Mode .197
On Board Diagnosis Logic ................................... .197
DTC Confirmation Procedure ............................... .198
Wiring Diagram .................................................... .199
Diagnostic Procedure ........................................... .200
Component Inspection ......................................... .203
Removal and Installation ...................................... .204
DTC P0112, P0113 IAT SENSOR ........................... .205
Component Description ....................................... .205
On Board Diagnosis Logic ................................... .205
DTC Confirmation Procedure ............................... .205
Wiring Diagram .................................................... .207
Diagnostic Procedure ........................................... .208
Component Inspection ......................................... .209
Removal and Installation ...................................... .209
DTC P0117, P0118 ECT SENSOR ......................... .210
Component Description ....................................... .210
On Board Diagnosis Logic ................................... .210
DTC Confirmation Procedure ............................... .211
Wiring Diagram .................................................... .212
Diagnostic Procedure ........................................... .213
Component Inspection ......................................... .214
Removal and Installation ...................................... .214
DTC P0122, P0123 TP SENSOR ........................... .215
Component Description ....................................... .215
CONSULT-II Reference Value in Data Monitor Mode .215
On Board Diagnosis Logic ................................... .215
DTC Confirmation Procedure ............................... .216
Wiring Diagram .................................................... .217
Diagnostic Procedure ........................................... .218
Component Inspection ......................................... .221
Removal and Installation ...................................... .221
DTC P0125 ECT SENSOR ..................................... .222
Component Description ....................................... .222
On Board Diagnosis Logic ................................... .222
DTC Confirmation Procedure ............................... .223
Diagnostic Procedure ........................................... .223
Component Inspection ......................................... .224
Removal and Installation ...................................... .224
DTC P0127 IAT SENSOR ....................................... .225
Component Description ....................................... .225
On Board Diagnosis Logic ................................... .225

EC-3
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EC A
Revision: 2006 December 2006 FX35/FX45 DTC Confirmation Procedure ..............................
. 225
Diagnostic Procedure .......................................... . 226
Component Inspection ........................................ . 227
Removal and Installation ..................................... . 227
DTC P0128 THERMOSTAT FUNCTION ............... . 228
On Board Diagnosis Logic .................................. . 228
DTC Confirmation Procedure .............................. . 228
Diagnostic Procedure .......................................... . 228
Component Inspection ........................................ . 229
Removal and Installation ..................................... . 229
DTC P0130, P0150 A/F SENSOR 1 ...................... . 230
Component Description ....................................... . 230
CONSULT-II Reference Value in Data Monitor Mode . 230
On Board Diagnosis Logic .................................. . 230
DTC Confirmation Procedure .............................. . 230
Overall Function Check ....................................... . 231
Wiring Diagram ................................................... . 233
Diagnostic Procedure .......................................... . 236
Removal and Installation ..................................... . 239
DTC P0131, P0151 A/F SENSOR 1 ...................... . 240
Component Description ....................................... . 240
CONSULT-II Reference Value in Data Monitor Mode . 240
On Board Diagnosis Logic .................................. . 240
DTC Confirmation Procedure .............................. . 241
Wiring Diagram ................................................... . 242
Diagnostic Procedure .......................................... . 245
Removal and Installation ..................................... . 248
DTC P0132, P0152 A/F SENSOR 1 ...................... . 249
Component Description ....................................... . 249
CONSULT-II Reference Value in Data Monitor Mode
. 249
On Board Diagnosis Logic .................................. . 249
DTC Confirmation Procedure .............................. . 250
Wiring Diagram ................................................... . 251
Diagnostic Procedure .......................................... . 254
Removal and Installation ..................................... . 257
DTC P0133, P0153 A/F SENSOR 1 ...................... . 258
Component Description ....................................... . 258
CONSULT-II Reference Value in Data Monitor Mode . 258
On Board Diagnosis Logic .................................. . 258
DTC Confirmation Procedure .............................. . 259
Wiring Diagram ................................................... . 261
Diagnostic Procedure .......................................... . 264
Removal and Installation ..................................... . 269
DTC P0137, P0157 HO2S2 ................................... . 270
Component Description ....................................... . 270
CONSULT-II Reference Value in Data Monitor Mode . 270
On Board Diagnosis Logic .................................. . 270
DTC Confirmation Procedure .............................. . 271
Overall Function Check ....................................... . 271
Wiring Diagram ................................................... . 273
Diagnostic Procedure .......................................... . 276
Component Inspection ........................................ . 278
Removal and Installation ..................................... . 280 DTC P0138, P0158 HO2S2 ....................................
.281
Component Description ....................................... .281
CONSULT-II Reference Value in Data Monitor Mode .281
On Board Diagnosis Logic ................................... .281
DTC Confirmation Procedure .............................. .282
Overall Function Check ....................................... .283
Wiring Diagram .................................................... .284
Diagnostic Procedure .......................................... .287
Component Inspection ......................................... .291
Removal and Installation ..................................... .293
DTC P0139, P0159 HO2S2 .................................... .294
Component Description ....................................... .294
CONSULT-II Reference Value in Data Monitor Mode .294
On Board Diagnosis Logic ................................... .294
DTC Confirmation Procedure .............................. .295
Overall Function Check ....................................... .295
Wiring Diagram .................................................... .297
Diagnostic Procedure .......................................... .300
Component Inspection ......................................... .302
Removal and Installation ..................................... .304
DTC P0171, P0174 FUEL INJECTION SYSTEM
FUNCTION ............................................................. .305
On Board Diagnosis Logic ................................... .305
DTC Confirmation Procedure .............................. .305
Wiring Diagram .................................................... .307
Diagnostic Procedure .......................................... .311
DTC P0172, P0175 FUEL INJECTION SYSTEM
FUNCTION ............................................................. .317
On Board Diagnosis Logic ................................... .317
DTC Confirmation Procedure .............................. .317
Wiring Diagram .................................................... .319
Diagnostic Procedure .......................................... .323
DTC P0181 FTT SENSOR ..................................... .328
Component Description ....................................... .328
On Board Diagnosis Logic ................................... .328
DTC Confirmation Procedure .............................. .328
Wiring Diagram .................................................... .330
Diagnostic Procedure .......................................... .331
Component Inspection ......................................... .333
Removal and Installation ..................................... .333
DTC P0182, P0183 FTT SENSOR ......................... .334
Component Description ....................................... .334
On Board Diagnosis Logic ................................... .334
DTC Confirmation Procedure .............................. .334
Wiring Diagram .................................................... .335
Diagnostic Procedure .......................................... .336
Component Inspection ......................................... .338
Removal and Installation ..................................... .338
DTC P0222, P0223 TP SENSOR ........................... .339
Component Description ....................................... .339
CONSULT-II Reference Value in Data Monitor Mode .339
On Board Diagnosis Logic ................................... .339
DTC Confirmation Procedure .............................. .340
Wiring Diagram .................................................... .341
Diagnostic Procedure .......................................... .342

EC-4Revision: 2006 December 2006 FX35/FX45 Component Inspection .........................................
.345
Removal and Installation ..................................... .345
DTC P0300 - P0306 MULTIPLE CYLINDER MIS-
FIRE, NO. 1 - 6 CYLINDER MISFIRE .................... .346
On Board Diagnosis Logic ................................... .346
DTC Confirmation Procedure .............................. .347
Diagnostic Procedure .......................................... .347
DTC P0327, P0328 KS ........................................... .356
Component Description ....................................... .356
On Board Diagnosis Logic ................................... .356
DTC Confirmation Procedure .............................. .356
Wiring Diagram .................................................... .357
Diagnostic Procedure .......................................... .358
Component Inspection ......................................... .359
Removal and Installation ..................................... .360
DTC P0335 CKP SENSOR (POS) ......................... .361
Component Description ....................................... .361
CONSULT-II Reference Value in Data Monitor Mode .361
On Board Diagnosis Logic ................................... .361
DTC Confirmation Procedure .............................. .362
Wiring Diagram .................................................... .363
Diagnostic Procedure .......................................... .364
Component Inspection ......................................... .367
Removal and Installation ..................................... .367
DTC P0340, P0345 CMP SENSOR (PHASE) ........ .368
Component Description ....................................... .368
CONSULT-II Reference Value in Data Monitor Mode .368
On Board Diagnosis Logic ................................... .368
DTC Confirmation Procedure .............................. .369
Wiring Diagram .................................................... .370
Diagnostic Procedure .......................................... .373
Component Inspection ......................................... .376
Removal and Installation ..................................... .376
DTC P0420, P0430 THREE WAY CATALYST FUNC-
TION ....................................................................... .377
On Board Diagnosis Logic ................................... .377
DTC Confirmation Procedure .............................. .377
Overall Function Check ....................................... .378
Diagnostic Procedure .......................................... .379
DTC P0441 EVAP CONTROL SYSTEM ................ .383
System Description .............................................. .383
On Board Diagnosis Logic ................................... .383
DTC Confirmation Procedure .............................. .383
Overall Function Check ....................................... .384
Diagnostic Procedure .......................................... .385
DTC P0442 EVAP CONTROL SYSTEM ................ .388
On Board Diagnosis Logic ................................... .388
DTC Confirmation Procedure .............................. .389
Diagnostic Procedure .......................................... .390
DTC P0443 EVAP CANISTER PURGE VOLUME
CONTROL SOLENOID VALVE .............................. .397
Description ........................................................... .397
CONSULT-II Reference Value in Data Monitor Mode .397
On Board Diagnosis Logic ................................... .398
DTC Confirmation Procedure .............................. .398
Wiring Diagram .................................................... .399 Diagnostic Procedure ...........................................
.401
Component Inspection ......................................... .404
Removal and Installation ...................................... .404
DTC P0444, P0445 EVAP CANISTER PURGE VOL-
UME CONTROL SOLENOID VALVE ..................... .405
Description ........................................................... .405
CONSULT-II Reference Value in Data Monitor Mode .405
On Board Diagnosis Logic ................................... .406
DTC Confirmation Procedure ............................... .406
Wiring Diagram .................................................... .407
Diagnostic Procedure ........................................... .409
Component Inspection ......................................... .410
Removal and Installation ...................................... .411
DTC P0447 EVAP CANISTER VENT CONTROL
VALVE ..................................................................... .412
Component Description ....................................... .412
CONSULT-II Reference Value in Data Monitor Mode .412
On Board Diagnosis Logic ................................... .412
DTC Confirmation Procedure ............................... .413
Wiring Diagram .................................................... .414
Diagnostic Procedure ........................................... .415
Component Inspection ......................................... .417
DTC P0448 EVAP CANISTER VENT CONTROL
VALVE ..................................................................... .419
Component Description ....................................... .419
CONSULT-II Reference Value in Data Monitor Mode .419
On Board Diagnosis Logic ................................... .419
DTC Confirmation Procedure ............................... .420
Wiring Diagram .................................................... .421
Diagnostic Procedure ........................................... .422
Component Inspection ......................................... .423
DTC P0451 EVAP CONTROL SYSTEM PRESSURE
SENSOR ................................................................. .425
Component Description ....................................... .425
CONSULT-II Reference Value in Data Monitor Mode .425
On Board Diagnosis Logic ................................... .425
DTC Confirmation Procedure ............................... .426
Diagnostic Procedure ........................................... .426
Component Inspection ......................................... .427
DTC P0452 EVAP CONTROL SYSTEM PRESSURE
SENSOR ................................................................. .428
Component Description ....................................... .428
CONSULT-II Reference Value in Data Monitor Mode .428
On Board Diagnosis Logic ................................... .428
DTC Confirmation Procedure ............................... .429
Wiring Diagram .................................................... .430
Diagnostic Procedure ........................................... .431
Component Inspection ......................................... .433
DTC P0453 EVAP CONTROL SYSTEM PRESSURE
SENSOR ................................................................. .434
Component Description ....................................... .434
CONSULT-II Reference Value in Data Monitor Mode .434
On Board Diagnosis Logic ................................... .434

EC-5
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Revision: 2006 December 2006 FX35/FX45 DTC Confirmation Procedure ..............................
. 435
Wiring Diagram ................................................... . 436
Diagnostic Procedure .......................................... . 437
Component Inspection ........................................ . 441
DTC P0455 EVAP CONTROL SYSTEM ............... . 442
On Board Diagnosis Logic .................................. . 442
DTC Confirmation Procedure .............................. . 443
Diagnostic Procedure .......................................... . 444
DTC P0456 EVAP CONTROL SYSTEM ............... . 450
On Board Diagnosis Logic .................................. . 450
DTC Confirmation Procedure .............................. . 451
Overall Function Check ....................................... . 452
Diagnostic Procedure .......................................... . 453
DTC P0460 FUEL LEVEL SENSOR ..................... . 460
Component Description ....................................... . 460
On Board Diagnosis Logic .................................. . 460
DTC Confirmation Procedure .............................. . 460
Diagnostic Procedure .......................................... . 461
Removal and Installation ..................................... . 461
DTC P0461 FUEL LEVEL SENSOR ..................... . 462
Component Description ....................................... . 462
On Board Diagnosis Logic .................................. . 462
Overall Function Check ....................................... . 462
Diagnostic Procedure .......................................... . 463
Removal and Installation ..................................... . 463
DTC P0462, P0463 FUEL LEVEL SENSOR ......... . 464
Component Description ....................................... . 464
On Board Diagnosis Logic .................................. . 464
DTC Confirmation Procedure .............................. . 464
Diagnostic Procedure .......................................... . 465
Removal and Installation ..................................... . 465
DTC P0500 VSS .................................................... . 466
Description .......................................................... . 466
On Board Diagnosis Logic .................................. . 466
DTC Confirmation Procedure .............................. . 466
Overall Function Check ....................................... . 466
Diagnostic Procedure .......................................... . 467
DTC P0506 ISC SYSTEM ...................................... . 468
Description .......................................................... . 468
On Board Diagnosis Logic .................................. . 468
DTC Confirmation Procedure .............................. . 468
Diagnostic Procedure .......................................... . 469
DTC P0507 ISC SYSTEM ...................................... . 470
Description .......................................................... . 470
On Board Diagnosis Logic .................................. . 470
DTC Confirmation Procedure .............................. . 470
Diagnostic Procedure .......................................... . 471
DTC P0550 PSP SENSOR .................................... . 472
Component Description ....................................... . 472
CONSULT-II Reference Value in Data Monitor Mode . 472
On Board Diagnosis Logic .................................. . 472
DTC Confirmation Procedure .............................. . 472
Wiring Diagram ................................................... . 473
Diagnostic Procedure .......................................... . 474
Component Inspection ........................................ . 476
Removal and Installation ..................................... . 476
DTC P0603 ECM POWER SUPPLY ...................... . 477
Component Description ....................................... . 477 On Board Diagnosis Logic ...................................
.477
DTC Confirmation Procedure .............................. .477
Wiring Diagram .................................................... .478
Diagnostic Procedure .......................................... .479
DTC P0605 ECM .................................................... .481
Component Description ....................................... .481
On Board Diagnosis Logic ................................... .481
DTC Confirmation Procedure .............................. .481
Diagnostic Procedure .......................................... .482
DTC P0643 SENSOR POWER SUPPLY ............... .484
On Board Diagnosis Logic ................................... .484
DTC Confirmation Procedure .............................. .484
Wiring Diagram .................................................... .485
Diagnostic Procedure .......................................... .487
DTC P0850 PNP SWITCH ..................................... .489
Component Description ....................................... .489
CONSULT-II Reference Value in Data Monitor Mode .489
On Board Diagnosis Logic ................................... .489
DTC Confirmation Procedure .............................. .489
Overall Function Check ....................................... .490
Wiring Diagram .................................................... .491
Diagnostic Procedure .......................................... .492
DTC P1148, P1168 CLOSED LOOP CONTROL ... .494
On Board Diagnosis Logic ................................... .494
DTC P1211 TCS CONTROL UNIT ......................... .495
Description ........................................................... .495
On Board Diagnosis Logic ................................... .495
DTC Confirmation Procedure .............................. .495
Diagnostic Procedure .......................................... .495
DTC P1212 TCS COMMUNICATION LINE ........... .496
Description ........................................................... .496
On Board Diagnosis Logic ................................... .496
DTC Confirmation Procedure .............................. .496
Diagnostic Procedure .......................................... .496
DTC P1217 ENGINE OVER TEMPERATURE ....... .497
Description ........................................................... .497
CONSULT-II Reference Value in Data Monitor Mode .498
On Board Diagnosis Logic ................................... .498
Overall Function Check ....................................... .499
Wiring Diagram .................................................... .501
Diagnostic Procedure .......................................... .503
Main 12 Causes of Overheating .......................... .508
Component Inspection ......................................... .508
DTC P1225 TP SENSOR ....................................... .510
Component Description ....................................... .510
On Board Diagnosis Logic ................................... .510
DTC Confirmation Procedure .............................. .510
Diagnostic Procedure .......................................... .511
Removal and Installation ..................................... .511
DTC P1226 TP SENSOR ....................................... .512
Component Description ....................................... .512
On Board Diagnosis Logic ................................... .512
DTC Confirmation Procedure .............................. .512
Diagnostic Procedure .......................................... .513
Removal and Installation ..................................... .513
DTC P1564 ICC STEERING SWITCH ................... .514
Component Description ....................................... .514

EC-6Revision: 2006 December 2006 FX35/FX45 CONSULT-II Reference Value in Data Monitor Mode
.514
On Board Diagnosis Logic ................................... .514
DTC Confirmation Procedure .............................. .515
Wiring Diagram .................................................... .516
Diagnostic Procedure .......................................... .517
Component Inspection ......................................... .520
DTC P1564 ASCD STEERING SWITCH ............... .521
Component Description ....................................... .521
CONSULT-II Reference Value in Data Monitor Mode .521
On Board Diagnosis Logic ................................... .521
DTC Confirmation Procedure .............................. .522
Wiring Diagram .................................................... .523
Diagnostic Procedure .......................................... .524
Component Inspection ......................................... .526
DTC P1568 ICC FUNCTION .................................. .528
On Board Diagnosis Logic ................................... .528
DTC Confirmation Procedure .............................. .528
Diagnostic Procedure .......................................... .528
DTC P1572 ICC BRAKE SWITCH ......................... .529
Component Description ....................................... .529
CONSULT-II Reference Value in Data Monitor Mode .529
On Board Diagnosis Logic ................................... .529
DTC Confirmation Procedure .............................. .530
Wiring Diagram .................................................... .531
Diagnostic Procedure .......................................... .532
Component Inspection ......................................... .537
DTC P1572 ASCD BRAKE SWITCH ..................... .538
Component Description ....................................... .538
CONSULT-II Reference Value in Data Monitor Mode
.538
On Board Diagnosis Logic ................................... .538
DTC Confirmation Procedure .............................. .539
Wiring Diagram .................................................... .540
Diagnostic Procedure .......................................... .541
Component Inspection ......................................... .545
DTC P1574 ICC VEHICLE SPEED SENSOR ........ .546
Component Description ....................................... .546
On Board Diagnosis Logic ................................... .546
DTC Confirmation Procedure .............................. .546
Diagnostic Procedure .......................................... .547
DTC P1574 ASCD VEHICLE SPEED SENSOR .... .548
Component Description ....................................... .548
On Board Diagnosis Logic ................................... .548
DTC Confirmation Procedure .............................. .548
Diagnostic Procedure .......................................... .549
DTC P1715 INPUT SPEED SENSOR (TURBINE
REVOLUTION SENSOR) ....................................... .550
Description ........................................................... .550
CONSULT-II Reference Value in Data Monitor Mode .550
On Board Diagnosis Logic ................................... .550
Diagnostic Procedure .......................................... .550
DTC P1805 BRAKE SWITCH ................................ .551
Description ........................................................... .551
CONSULT-II Reference Value in Data Monitor Mode .551 On Board Diagnosis Logic ...................................
.551
DTC Confirmation Procedure ............................... .551
Wiring Diagram .................................................... .552
Diagnostic Procedure ........................................... .553
Component Inspection ......................................... .555
DTC P2100, P2103 THROTTLE CONTROL MOTOR
RELAY .................................................................... .556
Component Description ....................................... .556
CONSULT-II Reference Value in Data Monitor Mode .556
On Board Diagnosis Logic ................................... .556
DTC Confirmation Procedure ............................... .556
Wiring Diagram .................................................... .558
Diagnostic Procedure ........................................... .559
DTC P2101 ELECTRIC THROTTLE CONTROL
FUNCTION ............................................................. .562
Description ........................................................... .562
On Board Diagnosis Logic ................................... .562
DTC Confirmation Procedure ............................... .562
Wiring Diagram .................................................... .563
Diagnostic Procedure ........................................... .564
Component Inspection ......................................... .567
Removal and Installation ...................................... .567
DTC P2118 THROTTLE CONTROL MOTOR ........ .568
Component Description ....................................... .568
On Board Diagnosis Logic ................................... .568
DTC Confirmation Procedure ............................... .568
Wiring Diagram .................................................... .569
Diagnostic Procedure ........................................... .570
Component Inspection ......................................... .571
Removal and Installation ...................................... .572
DTC P2119 ELECTRIC THROTTLE CONTROL
ACTUATOR ............................................................ .573
Component Description ....................................... .573
On Board Diagnosis Logic ................................... .573
DTC Confirmation Procedure ............................... .573
Diagnostic Procedure ........................................... .574
DTC P2122, P2123 APP SENSOR ........................ .575
Component Description ....................................... .575
CONSULT-II Reference Value in Data Monitor Mode .575
On Board Diagnosis Logic ................................... .575
DTC Confirmation Procedure ............................... .576
Wiring Diagram .................................................... .577
Diagnostic Procedure ........................................... .578
Component Inspection ......................................... .581
Removal and Installation ...................................... .581
DTC P2127, P2128 APP SENSOR ........................ .582
Component Description ....................................... .582
CONSULT-II Reference Value in Data Monitor Mode .582
On Board Diagnosis Logic ................................... .582
DTC Confirmation Procedure ............................... .583
Wiring Diagram .................................................... .584
Diagnostic Procedure ........................................... .585
Component Inspection ......................................... .588
Removal and Installation ...................................... .588
DTC P2135 TP SENSOR ....................................... .589
Component Description ....................................... .589

EC-7
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Revision: 2006 December 2006 FX35/FX45 CONSULT-II Reference Value in Data Monitor Mode
. 589
On Board Diagnosis Logic .................................. . 589
DTC Confirmation Procedure .............................. . 590
Wiring Diagram ................................................... . 591
Diagnostic Procedure .......................................... . 592
Component Inspection ........................................ . 595
Removal and Installation ..................................... . 595
DTC P2138 APP SENSOR .................................... . 596
Component Description ....................................... . 596
CONSULT-II Reference Value in Data Monitor Mode . 596
On Board Diagnosis Logic .................................. . 596
DTC Confirmation Procedure .............................. . 597
Wiring Diagram ................................................... . 598
Diagnostic Procedure .......................................... . 599
Component Inspection ........................................ . 603
Removal and Installation ..................................... . 603
DTC P2A00, P2A03 A/F SENSOR 1 ..................... . 604
Component Description ....................................... . 604
CONSULT-II Reference Value in Data Monitor Mode . 604
On Board Diagnosis Logic .................................. . 604
DTC Confirmation Procedure .............................. . 605
Wiring Diagram ................................................... . 606
Diagnostic Procedure .......................................... . 609
Removal and Installation ..................................... . 615
ASCD BRAKE SWITCH ........................................ . 616
Component Description ....................................... . 616
CONSULT-II Reference Value in Data Monitor Mode . 616
Wiring Diagram ................................................... . 617
Diagnostic Procedure .......................................... . 618
Component Inspection ........................................ . 622
ASCD INDICATOR ................................................ . 623
Component Description ....................................... . 623
CONSULT-II Reference Value in Data Monitor Mode . 623
Wiring Diagram ................................................... . 624
Diagnostic Procedure .......................................... . 625
ELECTRICAL LOAD SIGNAL ............................... . 626
Description .......................................................... . 626
CONSULT-II Reference Value in Data Monitor Mode . 626
Diagnostic Procedure .......................................... . 626
FUEL INJECTOR ................................................... . 628
Component Description ....................................... . 628
CONSULT-II Reference Value in Data Monitor Mode . 628
Wiring Diagram ................................................... . 629
Diagnostic Procedure .......................................... . 630
Component Inspection ........................................ . 634
Removal and Installation ..................................... . 634
FUEL PUMP .......................................................... . 635
Description .......................................................... . 635
CONSULT-II Reference Value in Data Monitor Mode . 635
Wiring Diagram ................................................... . 636 Diagnostic Procedure ..........................................
.637
Component Inspection ......................................... .640
Removal and Installation ..................................... .640
ICC BRAKE SWITCH ............................................ .641
Component Description ....................................... .641
CONSULT-II Reference Value in Data Monitor Mode .641
Wiring Diagram .................................................... .642
Diagnostic Procedure .......................................... .643
Component Inspection ......................................... .648
IGNITION SIGNAL ................................................. .649
Component Description ....................................... .649
Wiring Diagram .................................................... .650
Diagnostic Procedure .......................................... .655
Component Inspection ......................................... .660
Removal and Installation ..................................... .661
REFRIGERANT PRESSURE SENSOR ................. .662
Component Description ....................................... .662
Wiring Diagram .................................................... .663
Diagnostic Procedure .......................................... .664
Removal and Installation ..................................... .666
SNOW MODE SWITCH ......................................... .667
Description ........................................................... .667
CONSULT-II Reference Value in the Data Monitor
Mode .................................................................... .667
Wiring Diagram .................................................... .668
Diagnostic Procedure .......................................... .669
Component Inspection ......................................... .671
MIL AND DATA LINK CONNECTOR ..................... .672
Wiring Diagram .................................................... .672
SERVICE DATA AND SPECIFICATIONS (SDS) ... .674
Fuel Pressure ...................................................... .674
Idle Speed and Ignition Timing ............................ .674
Calculated Load Value ......................................... .674
Mass Air Flow Sensor .......................................... .674
Intake Air Temperature Sensor ............................ .674
Engine Coolant Temperature Sensor .................. .674
Air Fuel Ratio (A/F) Sensor 1 Heater ................... .674
Heated Oxygen sensor 2 Heater ......................... .674
Crankshaft Position Sensor (POS) ...................... .674
Camshaft Position Sensor (PHASE) ................... .674
Throttle Control Motor .......................................... .674
Fuel Injector ......................................................... .675
Fuel Pump ........................................................... .675
VK45DE
INDEX FOR DTC .................................................... .676
DTC No. Index ..................................................... .676
Alphabetical Index ............................................... .680
PRECAUTIONS ..................................................... .684
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .............................................................. .684
Precautions for Procedures without Cowl Top Cover .684
On Board Diagnostic (OBD) System of Engine and
A/T ....................................................................... .684
Precaution ........................................................... .685

EC-8Revision: 2006 December 2006 FX35/FX45
PREPARATION ......................................................
.688
Special Service Tools .......................................... .688
Commercial Service Tools ................................... .689
ENGINE CONTROL SYSTEM ............................... .690
System Diagram .................................................. .690
Multiport Fuel Injection (MFI) System .................. .691
Electronic Ignition (EI) System ............................ .693
Fuel Cut Control (at No Load and High Engine
Speed) ................................................................. .694
AIR CONDITIONING CUT CONTROL ................... .695
Input/Output Signal Chart .................................... .695
System Description .............................................. .695
AUTOMATIC SPEED CONTROL DEVICE (ASCD) .696
System Description .............................................. .696
Component Description ....................................... .697
CAN COMMUNICATION ........................................ .698
System Description .............................................. .698
EVAPORATIVE EMISSION SYSTEM .................... .699
Description ........................................................... .699
Component Inspection ......................................... .702
Removal and Installation ..................................... .703
How to Detect Fuel Vapor Leakage ..................... .703
ON BOARD REFUELING VAPOR RECOVERY
(ORVR) ................................................................... .706
System Description .............................................. .706
Diagnostic Procedure .......................................... .707
Component Inspection ......................................... .709
POSITIVE CRANKCASE VENTILATION .............. .711
Description ........................................................... .711
Component Inspection ......................................... .711
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-
NATS) ..................................................................... .713
Description ........................................................... .713
ON BOARD DIAGNOSTIC (OBD) SYSTEM ......... .714
Introduction .......................................................... .714
Two Trip Detection Logic ..................................... .714
Emission-related Diagnostic Information ............. .715
Malfunction Indicator Lamp (MIL) ........................ .729
OBD System Operation Chart ............................. .731
BASIC SERVICE PROCEDURE ............................ .737
Basic Inspection .................................................. .737
Idle Speed and Ignition Timing Check ................. .742
VIN Registration .................................................. .743
Accelerator Pedal Released Position Learning ... .743
Throttle Valve Closed Position Learning .............. .744
Idle Air Volume Learning ..................................... .744
Fuel Pressure Check ........................................... .746
TROUBLE DIAGNOSIS ......................................... .748
Trouble Diagnosis Introduction ............................ .748
DTC Inspection Priority Chart .............................. .754
Fail-Safe Chart .................................................... .756
Symptom Matrix Chart ......................................... .757
Engine Control Component Parts Location ......... .761
Vacuum Hose Drawing ........................................ .768
Circuit Diagram .................................................... .769
ECM Harness Connector Terminal Layout .......... .771
ECM Terminals and Reference Value .................. .771
CONSULT-II Function (ENGINE) ......................... .780
Generic Scan Tool (GST) Function ...................... .792 CONSULT-II Reference Value in Data Monitor ....
.795
Major Sensor Reference Graph in Data Monitor
Mode .................................................................... .799
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .801
Description ........................................................... .801
Testing Condition ................................................. .801
Inspection Procedure ........................................... .801
Diagnostic Procedure ........................................... .802
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT ...................................................................... .811
Description ........................................................... .811
Diagnostic Procedure ........................................... .811
POWER SUPPLY AND GROUND CIRCUIT .......... .812
Wiring Diagram .................................................... .812
Diagnostic Procedure ........................................... .813
Ground Inspection ................................................ .818
DTC U1000, U1001 CAN COMMUNICATION LINE .819
Description ........................................................... .819
On Board Diagnosis Logic ................................... .819
DTC Confirmation Procedure ............................... .819
Wiring Diagram .................................................... .820
Diagnostic Procedure ........................................... .821
DTC U1010 CAN COMMUNICATION .................... .822
Description ........................................................... .822
On Board Diagnosis Logic ................................... .822
DTC Confirmation Procedure ............................... .822
Diagnostic Procedure ........................................... .823
DTC P0011, P0021 IVT CONTROL ........................ .824
Description ........................................................... .824
CONSULT-II Reference Value in Data Monitor Mode .825
On Board Diagnosis Logic ................................... .825
DTC Confirmation Procedure ............................... .826
Wiring Diagram .................................................... .827
Diagnostic Procedure ........................................... .830
Component Inspection ......................................... .834
Removal and Installation ...................................... .835
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1
HEATER .................................................................. .836
Description ........................................................... .836
CONSULT-II Reference Value in Data Monitor Mode .836
On Board Diagnosis Logic ................................... .836
DTC Confirmation Procedure ............................... .836
Wiring Diagram .................................................... .837
Diagnostic Procedure ........................................... .840
Component Inspection ......................................... .842
Removal and Installation ...................................... .842
DTC P0037, P0038, P0057, P0058 HO2S2 HEATER .843
Description ........................................................... .843
CONSULT-II Reference Value in Data Monitor Mode .843
On Board Diagnosis Logic ................................... .843
DTC Confirmation Procedure ............................... .844
Wiring Diagram .................................................... .845
Diagnostic Procedure ........................................... .848
Component Inspection ......................................... .850
Removal and Installation ...................................... .850
DTC P0075, P0081 IVT CONTROL SOLENOID